Yes. Kia has documented this failure mode in its own service literature and has issued brake-pedal-switch campaigns covering the 2013 Optima, but the automaker has not treated every report of a brake that will not cancel cruise as a single safety recall. The distinction matters: Kia's awareness runs through the brake switch part, the wiring and connector, and the engine control module's (ECM's) brake-circuit logic, not through one blanket statement that every 2013 Optima has a cruise-cancel defect.
Mechanism: how the brake pedal is supposed to cancel cruise
On the 2013 Optima, cruise control is not canceled by a mechanical linkage to the brake pedal. It is canceled by an electronic signal. Two switches ride on the brake pedal bracket: a main brake switch that turns the brake lights on and off, and a secondary or redundant switch that tells the ECM the pedal has moved. The ECM watches both signals, and when either indicates braking, it drops the cruise request. The throttle actuator then closes.
The failure mode begins when those two signals disagree. A worn, misadjusted, or contaminated switch can keep the brake-light circuit live while the redundant circuit reads pedal-at-rest. The ECM sees contradictory inputs. Depending on which signal it trusts at that moment, it may keep the cruise set speed active even though the driver's foot is pressing the pedal. The result is a cruise system that appears deaf to the brake.
A second mechanism is the switch's internal contact plating. Brake-light switches on this generation of Hyundai-Kia products use sliding contacts that can develop a nonconductive film. That film raises resistance and creates intermittent opens. Intermittent signals are the hardest to reproduce in a service bay, which is why the complaint often outlives a single dealer visit. In plain terms, the pedal moves, but the message never reliably reaches the computer.
Quantified context: what Kia's own paperwork establishes
Kia's technical service bulletins for this era describe brake-pedal-switch inspection and replacement procedures with specific measurement windows. The switch plunger-to-pedal-pad clearance is typically specified in the range of roughly 0.02 to 0.08 inch, adjusted by rotating the switch body in its bracket. A clearance outside that band produces exactly the two-signal disagreement described above.
The brake-light switch itself is an inexpensive part. Depending on trim and parts pricing, a replacement switch commonly lands in the USD 20 to USD 60 range, and dealer labor to install and adjust it typically runs one-half to one hour. That economics is the counterintuitive part: the component at the center of a complaint about cruise that will not cancel usually costs less than a tank of fuel.
Kia's warranty coverage on the 2013 Optima was 5 years or 60,000 miles basic and 10 years or 100,000 miles powertrain for original owners. A 2013 model is now well past both windows, so most brake-switch repairs today are customer-pay unless a specific campaign applies to the vehicle identification number (VIN). Separate extended-warranty programs have covered certain brake-light switch conditions on some Hyundai-Kia vehicles; eligibility is VIN-specific and must be verified, not assumed.
Timeline: how the complaint typically develops
| Stage | What the driver notices | What the system is doing |
|---|---|---|
| Early | Cruise occasionally stays set for a beat after tapping the brake | Switch contact resistance rising; signals intermittently disagree |
| Developing | Brake lights stay on after the pedal releases | Main switch stuck closed or misadjusted |
| Intermediate | Cruise will not cancel with the brake but cancels with the steering-wheel button | Redundant brake signal lost; ECM ignoring brake input |
| Advanced | Cruise will not cancel and the pedal feels normal | ECM receiving no valid brake-cancel signal at all |
| Diagnostic | Scan tool shows brake switch status frozen | Live data contradicts the physical pedal position |
| Repair | Switch replaced and clearance reset | Both signals realign; cruise cancel returns |
The time course is not fixed. Some switches degrade over tens of thousands of miles; others fail within months of installation if the clearance was set wrong. That variance is why the complaint is often described as intermittent rather than constant.
Edge cases: when the brake is not the whole story
The brake switch is the most common cause, but it is not the only path to a cruise system that will not shut off. Several other faults produce an identical complaint, and each changes the diagnosis.
Clock spring failure in the steering wheel: the cancel button stops working, and if the brake signal is also marginal, the driver has no working cancel path at all. ECM software or brake-circuit logic faults: the computer misreads a valid brake signal, so the switch tests good while cruise still will not cancel. Corroded or backed-out connector pins at the switch: the signal exists at the switch but never arrives at the ECM. Aftermarket accessories tapped into the brake-light circuit: trailer wiring or alarm installs can load the circuit and mask the switch signal. Sticking cruise actuator or throttle body: rare on this platform, but a mechanically stuck actuator can hold speed independent of any cancel command.
The professional caveat here is that a switch that passes a static continuity test can still fail dynamically. Bench-testing a removed switch proves little. The reliable test is live scan data with the pedal cycled repeatedly while watching both brake-switch status parameters simultaneously.
Misconceptions: what the complaint is not
The most common misconception is that this is a runaway-throttle defect. It is not. The 2013 Optima's cruise system commands throttle through the electronic throttle control, and pressing the brake pedal physically overrides the cruise request in the ECM's logic when the brake signal is valid. The failure mode is a cancel signal that never arrives, not a throttle that cannot be closed. The driver retains the brake, the shifter, and the engine start/stop button as independent shutdown paths.
A second misconception is that Kia has issued a recall specifically titled for cruise-cancel failure on the 2013 Optima. That framing overstates the record. Kia's documented awareness is at the component and service-procedure level, plus VIN-specific campaigns for brake-light switch conditions. Owners should check their VIN against Kia's recall lookup rather than relying on forum summaries.
A third misconception is that replacing the switch always fixes it. If the root cause is a chafed wire or a corroded connector, a new switch restores nothing. Diagnosis must confirm the signal reaches the ECM, not just that the switch clicks.
Practical actions: what an owner or technician should do
The first step is to characterize the failure precisely. Does cruise fail to cancel with the brake only, or also with the steering-wheel cancel button? If the button works and the brake does not, the fault is in the brake-switch circuit. If neither works, suspect the clock spring or the ECM path.
The second step is a live-data test, not a parts cannon. With a scan tool connected, watch both brake-switch status parameters while an assistant presses and releases the pedal slowly, ten to twenty times. Any disagreement, lag, or stuck state confirms the switch circuit. Third, inspect the connector for corrosion, backed-out pins, and aftermarket taps before condemning the switch.
Fourth, if the switch is replaced, set the plunger clearance to the service specification and verify live data again after adjustment. Fifth, check the VIN against Kia's open-campaign database, because a covered campaign changes who pays. Sixth, if the brake lights stay on after the pedal releases, treat that as a red flag for a stuck main switch and address it immediately; a brake-light circuit that stays live can drain the battery and confuse other modules.
Threshold guidance for when to stop driving and get service: if cruise will not cancel by any method and the brake pedal does not reduce speed, that is an immediate stop-driving condition. If cruise cancels with the button but not the brake, schedule service promptly rather than continuing to rely on the button as a workaround.
Limitations: what the record cannot tell you
Kia's service literature establishes the mechanism and the repair procedure, but it does not establish a failure rate for the 2013 Optima's brake switch. No public figure reliably quantifies how many vehicles experienced cruise-cancel failure versus ordinary brake-light switch wear. Treat any specific percentage you encounter online as unverified unless it traces to a filed document.
Vehicle history also limits conclusions. A 2013 Optima may have had its switch replaced under an earlier campaign, by an independent shop, or not at all. Without service records, the current switch's provenance is unknown, and a repeat failure may reflect a prior misadjustment rather than a new defect. Finally, cruise-cancel behavior can be affected by battery voltage and module communication faults that have nothing to do with the brake switch, so a single repair does not guarantee the complaint is gone.
This article is general educational information about a vehicle system, not a diagnosis or repair instruction for any specific car. Brake and cruise-control faults are safety-related; have the vehicle inspected by a qualified automotive technician and verify campaign eligibility through Kia or the National Highway Traffic Safety Administration using your VIN. If the brake pedal fails to reduce speed, stop driving and seek immediate service.